Clamp



FIG. 1 is a top right perspective view of a clamp.

FIG. 2 is bottom right perspective view thereof.

FIG. 3 is a top left perspective view thereof.

FIG. 4 is top perspective view thereof, connected to two rails.

FIG. 5 is a front view thereof.

FIG. 6 is a back view thereof.

FIG. 7 is a left side view thereof.

FIG. 8 is a right side view thereof.

FIG. 9 is a top view thereof; and,

FIG. 10 is a bottom view thereof.

The broken line showing of parts of the drawings is included for the purpose of illustrating use and environment, and forms no part of the claimed design. 

CLAIM The ornamental design for a clamp, as shown and described. 